Sewing-machine-shafting guard



"May 22,1923. '1,455,899

f J.`L. CABELINSKY SEWING MACHINE SHAFTING GUARD Filed'nec. 1, 1919 2 sheets-sheet 1 fw@ MW -J. l.. cABEILlNsK'Y SEWING MACHINE' SHAFTING GUARD May 22, 1923.

Fil'ed Dec.

1, 1919 2 Sheets-Sheet 2 Patented llflay 22, i923.

tlltlll STATES JULIUS L. CABELINSKY, OF ROXBURY, MASSACHUSETTS.

SEWING-LTACI-IINE-SHAFTING GUARD.

Application filed December 1, 1919.

T all whomy may concern.'

Be it known that I, JULiUs L. CABELIN- SKY, a. citizen of the United States, and a resident of Roxbury, county oi' Suffolk, State of Massachusetts, have invented an Improvement in Sewing-Machine-Shafting Guards, of which the following is a specification.

This invention relates to shields for shafting, and more particularly, shafting which is supported beneath a sewing machine table to drive the `machine supported thereon. lVliile it is desirable to have both the shafting and the drive wheel suitably encased, it is also desirable and practically necessary that access to the drive wheel may be readily permitted, to enable the belt to be removed, replaced or otherwise adjusted. It is also practically necessary that the shielding means may be applied, removedl and adjusted without disturbing the shafting, and even while the shafting is in motion.

The objects of my invention are to provide a form off shield which maybe readily placed in position to encase the shafting, while being driven, which provides an effective shield for the drive wheel and may be readily adjusted to permit convenient access to the drive wheel when necessary, and which is provided with means permitting ready application and removal of the belt.

l accomplish these objects by the means shown in the -accompanying drawing, in which Fig. 1 is a front elevation of a sewing machine table, having an embodiment of my invention applied to the shafting thereof.

Fig. 2 is a central longitudinal section of the casing. f

Fig. 3 is a transverse section at line. 3-3 of Fig. 2.

Fig. 4 is an end view of the pulley shield at one side of the pulley.

Fig. 5 is an end view of the shield at the opposite side 0f the pulley.

Figs. 6, 7, and 8 are detail views of the belt shifting means.

In Fig. 1 of the drawing, a common form of sewing machine table 1 is indicated, having the usual clutch mechanism 2 which is driven from a line of shafting 4, journaled in the legs 5 of the table at a short distance from the floor, said shafting having a main pulley or drive wheel 6 thereon, which is belted to the clutch mechanism 2.

l il

-its flange within the casing 9.

Serialv No. 341,782.

and the edge portions of the casing 9 are. 7

enclosed within said flanges. As the casings extend circularly throughout more than semi-circumference, the sliding joint therebetween is adapted to resist transverse bending or deflection to practically the same l extent as if said sections were complete cylinders. Supports 10 and 12 are provided for said casings 8 and 9 respectively, said supports comprising strips of malleable iron bent in circular loop-torni to fit within thecasings, from edge to edge and to extend from these points. divergently to the floor, tor form legs, the intermediate portions thereof being secured by bolts, to said casings 8 and 9 respectively, adjacent the opposite ends thereof. ln placing the casings in position about the shafting, said legs are sprung or bent upwards or from each other to raise vor lower the casings, and hold their sides concentrically with the shaifting, the legs being bolted to the floor in their adjusted positions.

One, or both of said pairs of legs may be provided with a brace 14 which is connected l' thereto by a bolt 19 passing therethrough adjacent the lower edge of the casing to which it is .directly connected.

A wheel guard 16, composed of a flat circular disk of sheet metal is rotatably mounted in the end of the casing 9, said disk having a. flange 17, which is adapted to fit within said casing and to turn freelytherein The external diameter of the disk is somewhat greater than that of the drive wheel and is provided with a single radial slit, which extends from its inner to its outer edge, so that it may be temporarily distorted, to permit it to be placed on the shaft, and a metal plate 18 is secured thereto across said slit to hold the disk in position with Angular clips are. secured to the inner side or said lll) easing, preferably by the bolts which hold the legs l2 therein, and extend'through the disk and engage its outer side. as shown in Fig'. 2, so that it is held between the end ot the casing' at one side and the out-turned ends ot the clips at the other sido.

A rod 22 isslidably .mounted in the disk 1G perpendicularly thereto, and adjacent its edge, said rod havingr a belt-engjaging hook 22 on one end and a` handle 24; on the opposite end, and having a spring 26 thereon which is interposed between the disk and a stop-Washer 2l on the rod adjacent the hook, said spring;` thus normally acting to hold the handle agljaii'lst the opposite lside ot the disk therefrom.

A casina* 2S, similar in shape to the casing;` 8. is provided ttor the portion ot the shaft at tho opposite side ot the pulley` trom. the disk 16, said Casing 28 being supported by a loop-shaped strap 30 identieal to the straps l0 and l2, already described. A sector shaped shield 32 mounted on the end Ot the casing 28 next the pulley, said shield havingv an arc shaped YHanne 353 on its edge,

which overhangs the pulley G and d isk 16v as indicated in Figs. land 5.

ln praetice, a guard is also arranged in 'front 'of the pulley and clutch mechanism, which is adapted'to be lowered to permit ready access thereto, but illustration there-- of is omitted for the sakeot elearness and as it forms no part of the present invention.

lt will be apparent that the easing,pbe ing); thus adapted to be easily adjusted in lengtl'i and height, may be readily placed in. position to enclose the shatting Without distur ung the latter and, when secured in p0- sition, will be rigidly supported so that it will not be engaged b-y the shatting.y v

As it is occasion; lly necessary to pass the belt about the main pulley, before its ends can be Connected, the rotatably mounted disk 16 may be conveniently eniployediior this conveniently mounted on the rod 22, said bracket `having` an aperture 1n its end, to

kwhich one end of the belt may be conven-` iently attached, as indicated in Fig. 8. By rotating'the disk through one revolution, the belt end Will be carried about the pulley, so that its ends may be secured together.

ln ease it is desired tb remove the belt from the' pulley, the hook 22 is engaged with the belt aty the side Where it runs onto the pulley and then the-rod is pulled to the lett as the disk is turned. To replace the belt, the hook is engaged with the belt and guided onto the pulley as the disk is rotated to carry the disk beneath. the pulley, all as indicated in Figs. G, 7 and 8.

I claim: Y

l. A shattinaguard comprising a cylindrically shaped. casing open at one side to perniitthe same vto be placed in position about the. shatting, a pulley Lguard compris ing a splitA sheet metal disk haring;l a central aperture corresponding in diameter to the internal diameter of said casing, and rotatably mounted on said fasinggY at one' end, in register therewith, and belt-engaging means carried by said disk. y

2. ln combination `with a line o't shattinp; having, a driving,` pulley thereon, a 'casing disposed about said shatting and extending into proximity to said pulley. pulley shield rotatably mounted on said casing adjacent said pulley and abelt guide mounted on said` pulley shield and arranged to be engaged With the pulley belt to guide it into.4 position thereon. f y f' f In testimony Wliereoiv have signed my name to this speoieation.

.intrus n. oABnLrNsitY.. 

